CAN COMMUNICATION SYSTEM(w/o Toyota Safety Sense) Check CAN Bus Line for Short to GND (LHD Models)

DESCRIPTION

There may be a short circuit between the CAN bus lines and GND when the resistance between terminals 6 (CANH) and 4 (CG) or terminals 14 (CANL) and 4 (CG) of the DLC3 is below 200 Ω.

Symptom Trouble Area
The resistance between terminals 6 (CANH) and 4 (CG) or terminals 14 (CANL) and 4 (CG) of the DLC3 is below 200 Ω.

  • Short between CAN bus lines and GND

  • ECM

  • Combination meter assembly

  • Center airbag sensor assembly

  • Skid control ECU (brake actuator assembly)

  • Main body ECU (multiplex network body ECU)

  • Power steering ECU assembly

  • Certification ECU (smart key ECU assembly)*1

  • Steering angle sensor (spiral cable sub-assembly)*2

  • Radio and display receiver assembly*3

  • Air conditioning amplifier assembly*4

  • Engine stop and start ECU*5

  • No. 1 junction connector

  • No. 2 junction connector

  • Network gateway ECU*7

  • Option connector (bus buffer ECU)*7

WIRING DIAGRAM

B0046U9E08
B00485JE06
B0047EBE02
B004666E02

CAUTION / NOTICE / HINT

Note


  • Turn the ignition switch off before measuring the resistances of the CAN main wire and the CAN branch wire.

  • After the ignition switch is turned off, check that the key reminder warning system and light reminder warning system are not in operation.

  • Before measuring the resistance, leave the vehicle as is for at least 1 minute and do not operate the ignition switch, any other switches or the doors. If doors need to be opened in order to check connectors, open the doors and leave them open.

Tech Tips

Operating the ignition switch, any switches or any doors triggers related ECU and sensor communication with the CAN, which causes resistance variation.

PROCEDURE


  1. CHECK SHORT TO GND IN CAN BUS WIRE (DLC3 BRANCH WIRE)


    1. Turn the ignition switch off.

    2. Disconnect the A61 and F82 No. 1 junction connectors.

    3. B0047UIE02
      Text in Illustration
      *a Front view of DLC3

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      F4-6 (CANH) - F4-4 (CG) Ignition switch off 200 Ω or higher
      F4-14 (CANL) - F4-4 (CG) Ignition switch off 200 Ω or higher

    NG

    REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (DLC3 BRANCH WIRE)

    OK

  2. CONNECT CONNECTOR


    1. Reconnect the A61 and F82 No. 1 junction connectors.


    NEXT

  3. CHECK SHORT TO GND IN CAN BUS WIRE (NO. 2 JUNCTION CONNECTOR)


    1. Disconnect the F83 No. 2 junction connector.

    2. B0047UIE02
      Text in Illustration
      *a Front view of DLC3

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      F4-6 (CANH) - F4-4 (CG) Ignition switch off 200 Ω or higher
      F4-14 (CANL) - F4-4 (CG) Ignition switch off 200 Ω or higher

    NG

    CHECK SHORT TO GND IN CAN BUS WIRE (NO. 1 JUNCTION CONNECTOR - NO. 2 JUNCTION CONNECTOR) Click here

    OK

  4. CHECK SHORT TO GND IN CAN BUS WIRE (NO. 2 JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY)


    1. B0046W1E02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 2 Junction Connector)
      *b Front view of DLC3

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      F83-7 (CANH) - F4-4 (CG) Ignition switch off 200 Ω or higher
      F83-18 (CANL) - F4-4 (CG) Ignition switch off 200 Ω or higher

    NG

    CHECK SHORT TO GND IN CAN BUS WIRE (COMBINATION METER ASSEMBLY MAIN WIRE) Click here

    OK

  5. CHECK SHORT TO GND IN CAN BUS WIRE (NO. 2 JUNCTION CONNECTOR - AIR CONDITIONING AMPLIFIER ASSEMBLY)

    Tech Tips

    For vehicles without air conditioning system or PTC heater, go to step 6.


    1. B00466BE02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 2 Junction Connector)
      *b Front view of DLC3

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      F83-8 (CANH) - F4-4 (CG) Ignition switch off 200 Ω or higher
      F83-19 (CANL) - F4-4 (CG) Ignition switch off 200 Ω or higher

    NG

    CHECK SHORT TO GND IN CAN BUS WIRE (AIR CONDITIONING AMPLIFIER ASSEMBLY BRANCH WIRE) Click here

    OK

  6. CHECK SHORT TO GND IN CAN BUS WIRE (NO. 2 JUNCTION CONNECTOR - STEERING ANGLE SENSOR (SPIRAL CABLE SUB-ASSEMBLY))

    Tech Tips

    For vehicles without VSC, go to step 7.


    1. B00472YE02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 2 Junction Connector)
      *b Front view of DLC3

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      F83-1 (CANH) - F4-4 (CG) Ignition switch off 200 Ω or higher
      F83-12 (CANL) - F4-4 (CG) Ignition switch off 200 Ω or higher

    NG

    CHECK SHORT TO GND IN CAN BUS WIRE (STEERING ANGLE SENSOR (SPIRAL CABLE SUB-ASSEMBLY) BRANCH WIRE) Click here

    OK

  7. CHECK SHORT TO GND IN CAN BUS WIRE (NO. 2 JUNCTION CONNECTOR - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY))

    Tech Tips

    For vehicles without entry and start system, go to step 8.


    1. B0046HLE02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 2 Junction Connector)
      *b Front view of DLC3

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      F83-3 (CANH) - F4-4 (CG) Ignition switch off 200 Ω or higher
      F83-14 (CANL) - F4-4 (CG) Ignition switch off 200 Ω or higher

    NG

    CHECK SHORT TO GND IN CAN BUS WIRE (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) BRANCH WIRE) Click here

    OK

  8. CHECK SHORT TO GND IN CAN BUS WIRE (NO. 2 JUNCTION CONNECTOR - RADIO AND DISPLAY RECEIVER ASSEMBLY)

    Tech Tips

    For vehicles without display, go to step 9.


    1. B00483AE02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 2 Junction Connector)
      *b Front view of DLC3

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      F83-5 (CANH) - F4-4 (CG) Ignition switch off 200 Ω or higher
      F83-16 (CANL) - F4-4 (CG) Ignition switch off 200 Ω or higher

    NG

    CHECK SHORT TO GND IN CAN BUS WIRE (RADIO AND DISPLAY RECEIVER ASSEMBLY BRANCH WIRE Click here

    OK

  9. CHECK SHORT TO GND IN CAN BUS WIRE (NO. 2 JUNCTION CONNECTOR - CENTER AIRBAG SENSOR ASSEMBLY)


    1. B0048CGE03
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 2 Junction Connector)
      *b Front view of DLC3

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      F83-4 (CANH) - F4-4 (CG) Ignition switch off 200 Ω or higher
      F83-15 (CANL) - F4-4 (CG) Ignition switch off 200 Ω or higher

    OK

    REPLACE NO. 2 JUNCTION CONNECTOR

    NG

    CHECK SHORT TO GND IN CAN BUS WIRE (CENTER AIRBAG SENSOR ASSEMBLY BRANCH WIRE) Click here

  10. CHECK SHORT TO GND IN CAN BUS WIRE (NO. 1 JUNCTION CONNECTOR - NO. 2 JUNCTION CONNECTOR)


    1. Disconnect the A61 and F82 No. 1 junction connectors.

    2. B00455AE02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 1 Junction Connector)
      *b Front view of DLC3

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      F82-4 (CANH) - F4-4 (CG) Ignition switch off 200 Ω or higher
      F82-15 (CANL) - F4-4 (CG) Ignition switch off 200 Ω or higher

    NG

    REPAIR OR REPLACE CAN BUS MAIN WIRE OR CONNECTOR (NO. 1 JUNCTION CONNECTOR - NO. 2 JUNCTION CONNECTOR)

    OK

  11. CONNECT CONNECTOR


    1. Reconnect the F83 No. 2 junction connector.


    NEXT

  12. CHECK VEHICLE TYPE


    1. Check vehicle type.

      Result
      Result Proceed to
      except GRMN A
      for GRMN B

    B

    CHECK SHORT TO GND IN CAN BUS WIRE (NO. 1 JUNCTION CONNECTOR - NETWORK GATEWAY ECU) Click here

    A

  13. CHECK SHORT TO GND IN CAN BUS WIRE (NO. 1 JUNCTION CONNECTOR - ECM)


    1. B0045IME02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 1 Junction Connector)
      *b Front view of DLC3

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      A61-9 (CANH) - F4-4 (CG) Ignition switch off 200 Ω or higher
      A61-20 (CANL) - F4-4 (CG) Ignition switch off 200 Ω or higher

    OK

    CHECK SHORT TO GND IN CAN BUS WIRE (NO. 1 JUNCTION CONNECTOR - SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY) Click here

    NG

    CHECK SHORT TO GND IN CAN BUS WIRE (ECM MAIN WIRE) Click here

  14. CHECK SHORT TO GND IN CAN BUS WIRE (NO. 1 JUNCTION CONNECTOR - NETWORK GATEWAY ECU)


    1. B0045IME02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 1 Junction Connector)
      *b Front view of DLC3

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      A61-9 (CANH) - F4-4 (CG) Ignition switch off 200 Ω or higher
      A61-20 (CANL) - F4-4 (CG) Ignition switch off 200 Ω or higher

    NG

    CHECK SHORT TO GND IN CAN BUS WIRE (NETWORK GATEWAY ECU MAIN WIRE) Click here

    OK

  15. CHECK SHORT TO GND IN CAN BUS WIRE (NO. 1 JUNCTION CONNECTOR - SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY)


    1. B0047INE02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 1 Junction Connector)
      *b Front view of DLC3

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      A61-10 (CANH) - F4-4 (CG) Ignition switch off 200 Ω or higher
      A61-21 (CANL) - F4-4 (CG) Ignition switch off 200 Ω or higher

    NG

    CHECK SHORT TO GND IN CAN BUS WIRE (SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY) BRANCH WIRE) Click here

    OK

  16. CHECK SHORT TO GND IN CAN BUS WIRE (NO. 1 JUNCTION CONNECTOR - ENGINE STOP AND START ECU)

    Tech Tips

    For vehicles without stop and start system, go to step 17.


    1. B0046Y3E02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 1 Junction Connector)
      *b Front view of DLC3

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      F82-5 (CANH) - F4-4 (CG) Ignition switch off 200 Ω or higher
      F82-16 (CANL) - F4-4 (CG) Ignition switch off 200 Ω or higher

    NG

    CHECK SHORT TO GND IN CAN BUS WIRE (ENGINE STOP AND START ECU BRANCH WIRE) Click here

    OK

  17. CHECK SHORT TO GND IN CAN BUS WIRE (NO. 1 JUNCTION CONNECTOR - OPTION CONNECTOR (BUS BUFFER ECU))

    Tech Tips

    For vehicles without option connector (bus buffer ECU), go to step 18.


    1. B0046Y3E02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 1 Junction Connector)
      *b Front view of DLC3

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      F82-5 (CANH) - F4-4 (CG) Ignition switch off 200 Ω or higher
      F82-16 (CANL) - F4-4 (CG) Ignition switch off 200 Ω or higher

    NG

    CHECK SHORT TO GND IN CAN BUS WIRE (OPTION CONNECTOR (BUS BUFFER ECU) BRANCH WIRE) Click here

    OK

  18. CHECK SHORT TO GND IN CAN BUS WIRE (NO. 1 JUNCTION CONNECTOR - POWER STEERING ECU ASSEMBLY)


    1. B004613E02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 1 Junction Connector)
      *b Front view of DLC3

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      F82-2 (CANH) - F4-4 (CG) Ignition switch off 200 Ω or higher
      F82-13 (CANL) - F4-4 (CG) Ignition switch off 200 Ω or higher

    NG

    CHECK SHORT TO GND IN CAN BUS WIRE (POWER STEERING ECU ASSEMBLY) Click here

    OK

  19. CHECK SHORT TO GND IN CAN BUS WIRE (NO. 1 JUNCTION CONNECTOR - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))


    1. B0045OPE02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 1 Junction Connector)
      *b Front view of DLC3

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      F82-1 (CANH) - F4-4 (CG) Ignition switch off 200 Ω or higher
      F82-12 (CANL) - F4-4 (CG) Ignition switch off 200 Ω or higher

    OK

    REPLACE NO. 1 JUNCTION CONNECTOR

    NG

    CHECK SHORT TO GND IN CAN BUS WIRE (MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) BRANCH WIRE) Click here

  20. CHECK SHORT TO GND IN CAN BUS WIRE (COMBINATION METER ASSEMBLY MAIN WIRE)


    1. Disconnect the F1 combination meter assembly connector.

    2. B0046W1E02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 2 Junction Connector)
      *b Front view of DLC3

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      F83-7 (CANH) - F4-4 (CG) Ignition switch off 200 Ω or higher
      F83-18 (CANL) - F4-4 (CG) Ignition switch off 200 Ω or higher

    OK

    REPLACE COMBINATION METER ASSEMBLY Click here

    NG

    REPAIR OR REPLACE CAN BUS MAIN WIRE OR CONNECTOR (COMBINATION METER ASSEMBLY MAIN WIRE)

  21. CHECK SHORT TO GND IN CAN BUS WIRE (AIR CONDITIONING AMPLIFIER ASSEMBLY BRANCH WIRE)


    1. Disconnect the F42*1 or F41*2 air conditioning amplifier assembly connector.


      • *1 : w/ Automatic Air Conditioning System

      • *2 : w/ Manual Air Conditioning System or PTC Heater

    2. B00466BE02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 2 Junction Connector)
      *b Front view of DLC3

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      F83-8 (CANH) - F4-4 (CG) Ignition switch off 200 Ω or higher
      F83-19 (CANL) - F4-4 (CG) Ignition switch off 200 Ω or higher

    OK

    REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY Click here

    NG

    REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (AIR CONDITIONING AMPLIFIER ASSEMBLY BRANCH WIRE)

  22. CHECK SHORT TO GND IN CAN BUS WIRE (STEERING ANGLE SENSOR (SPIRAL CABLE SUB-ASSEMBLY) BRANCH WIRE)


    1. Disconnect the F30 steering angle sensor (spiral cable sub-assembly) connector.

    2. B00472YE02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 2 Junction Connector)
      *b Front view of DLC3

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      F83-1 (CANH) - F4-4 (CG) Ignition switch off 200 Ω or higher
      F83-12 (CANL) - F4-4 (CG) Ignition switch off 200 Ω or higher

    OK

    REPLACE STEERING ANGLE SENSOR (SPIRAL CABLE SUB-ASSEMBLY) Click here

    NG

    REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (STEERING ANGLE SENSOR (SPIRAL CABLE SUB-ASSEMBLY) BRANCH WIRE)

  23. CHECK SHORT TO GND IN CAN BUS WIRE (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) BRANCH WIRE)


    1. Disconnect the F63 certification ECU (smart key ECU assembly) connector.

    2. B0046HLE02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 2 Junction Connector)
      *b Front view of DLC3

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      F83-3 (CANH) - F4-4 (CG) Ignition switch off 200 Ω or higher
      F83-14 (CANL) - F4-4 (CG) Ignition switch off 200 Ω or higher

    OK

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    NG

    REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) BRANCH WIRE)

  24. CHECK SHORT TO GND IN CAN BUS WIRE (RADIO AND DISPLAY RECEIVER ASSEMBLY BRANCH WIRE


    1. Disconnect the F115 radio and display receiver assembly connector.

    2. B00483AE02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 2 Junction Connector)
      *b Front view of DLC3

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      F83-5 (CANH) - F4-4 (CG) Ignition switch off 200 Ω or higher
      F83-16 (CANL) - F4-4 (CG) Ignition switch off 200 Ω or higher

    OK

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY Click here

    NG

    REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY BRANCH WIRE)

  25. CHECK SHORT TO GND IN CAN BUS WIRE (CENTER AIRBAG SENSOR ASSEMBLY BRANCH WIRE)


    1. Disconnect the F16 center airbag sensor assembly connector.

    2. B0048CGE03
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 2 Junction Connector)
      *b Front view of DLC3

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      F83-4 (CANH) - F4-4 (CG) Ignition switch off 200 Ω or higher
      F83-15 (CANL) - F4-4 (CG) Ignition switch off 200 Ω or higher

    OK

    REPLACE CENTER AIRBAG SENSOR ASSEMBLY Click here

    NG

    REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (CENTER AIRBAG SENSOR ASSEMBLY BRANCH WIRE)

  26. CHECK SHORT TO GND IN CAN BUS WIRE (ECM MAIN WIRE)


    1. Disconnect the A58*1, A93*2, A108*3 or A59*4 ECM connector.


      • *1: for 2NR-FKE

      • *2: for 1KR-FE

      • *3: for 1ND-TV with DPF

      • *4: for 1ND-TV without DPF

    2. B0045IME02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 1 Junction Connector)
      *b Front view of DLC3

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      A61-9 (CANH) - F4-4 (CG) Ignition switch off 200 Ω or higher
      A61-20 (CANL) - F4-4 (CG) Ignition switch off 200 Ω or higher
      Result
      Result Proceed to
      NG A
      OK (for 2NR-FKE) B
      OK (for 1KR-FE) C
      OK (for 1ND-TV with DPF) D
      OK (for 1ND-TV without DPF) E

    A

    REPAIR OR REPLACE CAN BUS MAIN WIRE OR CONNECTOR (ECM MAIN WIRE)

    B

    REPLACE ECM Click here

    C

    REPLACE ECM Click here

    D

    REPLACE ECM Click here

    E

    REPLACE ECM Click here

  27. CHECK SHORT TO GND IN CAN BUS WIRE (NETWORK GATEWAY ECU MAIN WIRE)


    1. Disconnect the A118 network gateway ECU connector.

    2. B0045IME02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 1 Junction Connector)
      *b Front view of DLC3

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      A61-9 (CANH) - F4-4 (CG) Ignition switch off 200 Ω or higher
      A61-20 (CANL) - F4-4 (CG) Ignition switch off 200 Ω or higher

    OK

    REPLACE NETWORK GATEWAY ECU Click here

    NG

    REPAIR OR REPLACE CAN BUS MAIN WIRE OR CONNECTOR (NETWORK GATEWAY ECU MAIN WIRE)

  28. CHECK SHORT TO GND IN CAN BUS WIRE (SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY) BRANCH WIRE)


    1. Disconnect the A78*1 or A79*2 skid control ECU (brake actuator assembly) connector.


      • *1: for CVT

      • *2: except CVT

    2. B0047INE02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 1 Junction Connector)
      *b Front view of DLC3

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      A61-10 (CANH) - F4-4 (CG) Ignition switch off 200 Ω or higher
      A61-21 (CANL) - F4-4 (CG) Ignition switch off 200 Ω or higher

    OK

    REPLACE SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY) Click here

    NG

    REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY) BRANCH WIRE)

  29. CHECK SHORT TO GND IN CAN BUS WIRE (ENGINE STOP AND START ECU BRANCH WIRE)


    1. Disconnect the F131 engine stop and start ECU connector.

    2. B0046Y3E02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 1 Junction Connector)
      *b Front view of DLC3

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      F82-5 (CANH) - F4-4 (CG) Ignition switch off 200 Ω or higher
      F82-16 (CANL) - F4-4 (CG) Ignition switch off 200 Ω or higher

    OK

    REPLACE ENGINE STOP AND START ECU Click here

    NG

    REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (ENGINE STOP AND START ECU BRANCH WIRE)

  30. CHECK SHORT TO GND IN CAN BUS WIRE (OPTION CONNECTOR (BUS BUFFER ECU) BRANCH WIRE)


    1. Disconnect the F143 option connector (bus buffer ECU) connector.

    2. B0046Y3E02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 1 Junction Connector)
      *b Front view of DLC3

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      F82-5 (CANH) - F4-4 (CG) Ignition switch off 200 Ω or higher
      F82-16 (CANL) - F4-4 (CG) Ignition switch off 200 Ω or higher

    OK

    REPLACE OPTION CONNECTOR (BUS BUFFER ECU)

    NG

    REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (OPTION CONNECTOR (BUS BUFFER ECU) BRANCH WIRE)

  31. CHECK SHORT TO GND IN CAN BUS WIRE (POWER STEERING ECU ASSEMBLY)


    1. Disconnect the F6 power steering ECU assembly connector.

    2. B004613E02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 1 Junction Connector)
      *b Front view of DLC3

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      F82-2 (CANH) - F4-4 (CG) Ignition switch off 200 Ω or higher
      F82-13 (CANL) - F4-4 (CG) Ignition switch off 200 Ω or higher

    OK

    REPLACE POWER STEERING ECU ASSEMBLY Click here

    NG

    REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (POWER STEERING ECU ASSEMBLY BRANCH WIRE)

  32. CHECK SHORT TO GND IN CAN BUS WIRE (MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) BRANCH WIRE)


    1. Disconnect the F76 main body ECU (multiplex network body ECU) connector.

    2. B0045OPE02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 1 Junction Connector)
      *b Front view of DLC3

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      F82-1 (CANH) - F4-4 (CG) Ignition switch off 200 Ω or higher
      F82-12 (CANL) - F4-4 (CG) Ignition switch off 200 Ω or higher

    OK

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here

    NG

    REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) BRANCH WIRE)